Fixed emission of the __kmpc_global_thread_num() so that it is not
messed up with alloca instructions anymore. Plus, fixes emission of the
__kmpc_global_thread_num() functions in the target outlined regions so
that they are not called before runtime is initialized.
llvm-svn: 343856
Decode subvector shuffles from INSERT_SUBVECTOR(SRC0, SHUFFLE(EXTRACT_SUBVECTOR(SRC1))
This was found necessary while investigating PR39161
llvm-svn: 343853
Call getOperandInfo() instead of using (near) duplicated code in
LoopVectorizationCostModel::getInstructionCost().
This gets the OperandValueKind and OperandValueProperties values for a Value
passed as operand to an arithmetic instruction.
getOperandInfo() used to be a static method in TargetTransformInfo.cpp, but
is now instead a public member.
Review: Florian Hahn
https://reviews.llvm.org/D52883
llvm-svn: 343852
Finally all targets are enabling multiple regalloc hints, so the hook to
disable this can now be removed.
NFC.
Review: Simon Pilgrim
https://reviews.llvm.org/D52316
llvm-svn: 343851
Summary:
This patch is a small refactoring necessary for
'readability-isolate-declaration' and does not introduce functional changes.
It allows to use the utility functions without a full `ASTContext` and requires only the `SourceManager` and the `LangOpts`.
Reviewers: alexfh, aaron.ballman, hokein
Reviewed By: alexfh
Subscribers: nemanjai, xazax.hun, kbarton, cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D52684
llvm-svn: 343850
This check warns the uses of the deprecated member types of std::ios_base
and replaces those that have a non-deprecated equivalent.
Patch by andobence!
Reviewd by: alexfh
Revision ID: https://reviews.llvm.org/D51332
llvm-svn: 343848
(patch by Benoit Rousseau)
This patch fixes a bug where the global variable initializers were sometimes not invoked in the correct order when it involved a C++ template instantiation.
Differential Revision: https://reviews.llvm.org/D52749
llvm-svn: 343847
Calling getMacroArgExpansionLocation too early was causing
Lexer::getRawToken to do the wrong thing - lexing the macro name instead
of the arg contents.
Differential Revision: https://reviews.llvm.org/D52928
llvm-svn: 343844
Some projects rely on using libraries from the Windows SDK with their
original casing, just with a lowercase extension. E.g. the WinSock2 lib
is named WS2_32.Lib in the Windows SDK, and we would previously only
create a ws2_32.lib symlink for it (i.e. all lowercase). Also create a
WS2_32.lib symlink (i.e. original casing with lowercase extension) to
cover users of this casing. As a drive-by fix, only create these
symlinks when they differ from the original name to reduce the amount of
noise in the library symlinks directory.
llvm-svn: 343832
Summary:
Instead of only examining call arguments, we also examine constructor
arguments applying the same rules.
That was an opportunity for refactoring the examination procedure to
work with iterators instead of integer indices. For the case of
CallExprs no functional change is intended.
Reviewers: aaron.ballman, delesley
Reviewed By: delesley
Subscribers: JonasToth, cfe-commits
Differential Revision: https://reviews.llvm.org/D52443
llvm-svn: 343831
Summary:
These are emitted by the wasm backend for e.g.
__stack_pointer@GLOBAL which previously wasn't accepted by the
assembler.
Reviewers: aheejin, dschuff
Subscribers: sbc100, jgravelle-google, llvm-commits, sunfish
Differential Revision: https://reviews.llvm.org/D52911
llvm-svn: 343830
Summary:
At some point in the past the recursion in DominatesMergePoint used to pass null for AggressiveInsts as part of the recursion. It no longer does this. So there is no way for AggressiveInsts to be null.
This passes it by reference and removes the null check to make this explicit.
Reviewers: efriedma, reames
Reviewed By: efriedma
Subscribers: xbolva00, llvm-commits
Differential Revision: https://reviews.llvm.org/D52575
llvm-svn: 343828
Summary:
Fixes https://bugs.llvm.org/show_bug.cgi?id=39158 and regression caused by
D49034. Though it is possible the problem was existed before and was exposed by
additional DBG_VALUEs.
Reviewers: sunfish, dschuff, aheejin
Reviewed By: aheejin
Subscribers: sbc100, aheejin, llvm-commits, alexcrichton, jgravelle-google
Differential Revision: https://reviews.llvm.org/D52837
llvm-svn: 343827
The simplest instance of this is an intrinsic with no results which will have the
intrinsic ID as operand 0.
Also fix some benign incorrectness when op0 is a reg but isn't a def that was
guarded against by checking for the extension opcodes.
llvm-svn: 343821
We established the (unfortunately complicated) rules for UB/poison
propagation with vector ops in:
D48893
D48987
D49047
It's clear from the affected tests that we are potentially creating
poison where none existed before the transforms. For add/sub/mul,
the answer is simple: just drop the flags because the extra undef
vector lanes are generally more valuable for analysis and codegen.
llvm-svn: 343819
Previously we replaced the chain use ourself and return the data result. LegalizeVectorOps then detected that we'd done this and assumed the chain had already been handled.
This commit instead returns a MERGE_VALUES node with two results joined from nodes. This allows LegalizeVectorOps to do all the replacements for us without any special casing. The MERGE_VALUES will be removed by DAG combine.
llvm-svn: 343817
Summary:
The llvm::SimplifyCFG function creates a SimplifyCFGOpt object and calls run on it. There were numerous places reached from this run function that called back out llvm::SimplifyCFG which would create another SimplifyCFGOpt object. This is an inefficient use of stack space at minimum. We are also not passing along the LoopHeaders pointer passed into the outer llvm::SimplifyCFG call. So if its not null we lose it on the first recursion and get nullptr from there on.
This patch adds an outer loop around the main BasicBlock simplifying code and adds a flag to the SimplifyCFGOpt class that can be set by to request another iteration. I don't think we can iterate based just on the change flag alone since some of the simplifications delete a basic block entirely leaving nothing to iterate on.
Reviewers: bogner, eli.friedman, reames
Reviewed By: reames
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D52760
llvm-svn: 343816
The isAmdCodeObjectV2 is a misleading name which actually checks whether the os
is amdhsa or mesa.
Also add a test to make sure we do not generate old kernel header for code
object v3.
Differential Revision: https://reviews.llvm.org/D52897
llvm-svn: 343813
Data involving struct accesses accounting work (plan to support only efficiency-cache-frag flag in the frontend side).
Reviewers: krytarowski, vitalybuka, jfb
Reviewed By : vitalybuka
Differential Revision: https://reviews.llvm.org/D52608
llvm-svn: 343812
This can happen if assembling a reference to _GLOBAL_OFFSET_TABLE_.
While it doesn't make sense to try to assemble that for COFF,
the fact that we previously used llvm_unreachable meant that the code
had undefined behaviour if something tried to assemble that.
The configure script of libgmp would try to assemble such a snippet
(which should signal a failure). If llvm is built without assertions,
the undefined behaviour meant a (near) infinite loop.
Differential Revision: https://reviews.llvm.org/D52903
llvm-svn: 343811
Summary:
- Update the example VS project generation to use VS2017.
- Add docs for generating ninja build files, since they are popular.
- Remove reference to "make update" which no longer exists. Mention the
monorepo instead.
- Try to explain gnuwin32/coreutils requirements better.
- Use https:// links where possible
Reviewers: zturner, STL_MSFT
Subscribers: jfb, cfe-commits
Differential Revision: https://reviews.llvm.org/D52843
llvm-svn: 343809
As discussed in https://reviews.llvm.org/D50144, we want Obj-C classes
to have the same mangling as C++ structs, to support headers like the
following:
```
@class I;
struct I;
void f(I *);
```
since the header can be used from both C++ and Obj-C++ TUs, and we want
a consistent mangling across the two to prevent link errors. Itanium
mangles both the same way, and so should the MS ABI.
The main concern with having the same mangling for C++ structs and Obj-C
classes was that we want to treat them differently for the purposes of
exception handling, e.g. we don't want a C++ catch statement for a
struct to be able to catch an Obj-C class with the same name as the
struct. We can accomplish this by mangling Obj-C class names differently
in their RTTI, which I'll do in a follow-up patch.
Differential Revision: https://reviews.llvm.org/D52581
llvm-svn: 343808
Simon Pilgrim